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PC World 2001 April
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Vyzkuste
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gs
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gs650w32.exe
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gs6.50
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gs_pdfwr.ps
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2000-12-05
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% Copyright (C) 1996, 2000 Aladdin Enterprises. All rights reserved.
%
% This file is part of AFPL Ghostscript.
%
% AFPL Ghostscript is distributed with NO WARRANTY OF ANY KIND. No author or
% distributor accepts any responsibility for the consequences of using it, or
% for whether it serves any particular purpose or works at all, unless he or
% she says so in writing. Refer to the Aladdin Free Public License (the
% "License") for full details.
%
% Every copy of AFPL Ghostscript must include a copy of the License, normally
% in a plain ASCII text file named PUBLIC. The License grants you the right
% to copy, modify and redistribute AFPL Ghostscript, but only under certain
% conditions described in the License. Among other things, the License
% requires that the copyright notice and this notice be preserved on all
% copies.
% $Id: gs_pdfwr.ps,v 1.6 2000/09/19 18:29:11 lpd Exp $
% PDF writer additions to systemdict.
% This file should be included iff the pdfwrite "device" is included
% in the executable.
% ---------------- Predefined configurations ---------------- %
% These correspond to the 3 predefined settings in Acrobat Distiller 4,
% plus a "default" setting.
% Parameters common to all configurations.
% Note that we don't set AlwaysEmbed or NeverEmbed, since the default values
% depend on the CompatibilityLevel and are initialized internally.
/.defaultImageDict mark
/QFactor 0.9 /Blend 1
/HSamples [2 1 1 2] /VSamples [2 1 1 2]
.dicttomark readonly def
/.distillercommon mark
/ASCII85EncodePages false
/AntiAliasColorImages false
/AntiAliasGrayImages false
/AntiAliasMonoImages false
/AutoFilterColorImages true
/AutoFilterGrayImages true
/AutoFilterMonoImages true
/AutoPositionEPSFiles true
/Binding /Left
% What to do about the CalxxxProfiles?
/ColorACSImageDict .defaultImageDict
/ColorImageDepth -1
/ColorImageDict .defaultImageDict
/ColorImageDownsampleThreshold 1.5
/ColorImageFilter /DCTEncode
/CompressPages true
/ConvertImagesToIndexed true
/DefaultRenderingIntent /Default
/DetectBlends true
/DownsampleColorImages true
/DownsampleGrayImages true
/DownsampleMonoImages true
/EmitDSCWarnings false
/EncodeColorImages true
/EncodeGrayImages true
/EncodeMonoImages true
/EndPage -1
/GrayACSImageDict .defaultImageDict
/GrayImageDepth -1
/GrayImageDict .defaultImageDict
/GrayImageDownsampleThreshold 1.5
/GrayImageFilter /DCTEncode
/ImageMemory 500000
/LockDistillerParams false
/MaxSubsetPct 100
/MonoImageDepth -1
/MonoImageDict mark
/K -1
.dicttomark readonly
/MonoImageDownsampleThreshold 1.5
/MonoImageFilter /CCITTFaxEncode
/OPM 1
/Optimize true
/ParseDSCComments true
/PreserveCopyPage true
/PreserveEPSInfo true
/PreserveHalftoneInfo false
/StartPage 1
/SubsetFonts true
/TransferFunctionInfo /Preserve
/UseFlateCompression true
/UsePrologue false
.dicttomark readonly def
/.distillersettings mark
/default mark
/AutoRotatePages /PageByPage
/CannotEmbedFontPolicy /Warning
/DownsampleColorImages false
/DownsampleGrayImages false
/DownsampleMonoImages false
/Optimize false
.dicttomark readonly
/screen mark
/AutoRotatePages /PageByPage
/CannotEmbedFontPolicy /Warning
/ColorConversionStrategy /sRGB
/ColorImageDownsampleType /Average
/ColorImageResolution 72
/CompatibilityLevel 1.2
/CreateJobTicket false
/DoThumbnails false
/DownsampleColorImages true
/DownsampleGrayImages true
/DownsampleMonoImages true
/EmbedAllFonts false
/GrayImageDownsampleType /Average
/GrayImageResolution 72
/MonoImageDownsampleType /Average
/MonoImageResolution 300
/ParseDSCCommentsForDocInfo false
/PreserveOPIComments false
/PreserveOverprintSettings false
/UCRandBGInfo /Remove
.dicttomark readonly
/.printerACSImageDict mark
/QFactor 0.55 /Blend 1
/HSamples [2 1 1 2] /VSamples [2 1 1 2]
.dicttomark readonly def
/printer mark
/AutoRotatePages /None
/CannotEmbedFontPolicy /Warning
/ColorACSImageDict .printerACSImageDict
/ColorConversionStrategy /UseDeviceIndependentColor
/ColorImageDownsampleType /Bicubic
/ColorImageResolution 300
/CompatibilityLevel 1.3
/CreateJobTicket true
/DoThumbnails false
/EmbedAllFonts true
/GrayACSImageDict .printerACSImageDict
/GrayImageDownsampleType /Bicubic
/GrayImageResolution 300
/MonoImageDownsampleType /Bicubic
/MonoImageResolution 1200
/ParseDSCCommentsForDocInfo true
/PreserveOPIComments true
/PreserveOverprintSettings true
/UCRandBGInfo /Preserve
.dicttomark readonly
/.prepressACSImageDict mark
/QFactor 0.25
/HSamples [1 1 1 1] /VSamples [1 1 1 1]
.dicttomark readonly def
/prepress mark
/AutoRotatePages /None
/CannotEmbedFontPolicy /Error
/ColorACSImageDict .prepressACSImageDict
/ColorConversionStrategy /LeaveColorUnchanged
/ColorImageDownsampleType /Bicubic
/ColorImageResolution 300
/CompatibilityLevel 1.3
/CreateJobTicket true
/DoThumbnails true
/EmbedAllFonts true
/GrayACSImageDict .prepressACSImageDict
/GrayImageDownsampleType /Bicubic
/GrayImageResolution 300
/MonoImageDownsampleType /Bicubic
/MonoImageResolution 1200
/ParseDSCCommentsForDocInfo true
/PreserveOPIComments true
/PreserveOverprintSettings true
/UCRandBGInfo /Preserve
.dicttomark readonly
.dicttomark readonly def
% ---------------- End of predefined configurations ---------------- %
% Set optimizations for converting PostScript to PDF.
% The ps2pdf* scripts invoke this.
/.setpdfwrite { % - .setpdfwrite -
% Set a large VM threshold to reduce garbage collection.
currentuserparams /VMThreshold get 3000000 .max setvmthreshold
% Install a level of 'save' to reduce font loading.
save pop
} bind def
% Redefine pdfmark to pass the data to the driver.
% We use a pseudo-parameter named /pdfmark whose value is an array:
% key1 value1 ... CTM /type
/.pdf===dict mark
/arraytype
{ dup xcheck { ({) (}) } { ([) (]) } ifelse
% Stack: file obj left right
4 1 roll 2 index exch writestring () exch
{ exch 2 index exch writestring
1 index exch pdfmark===only ( )
}
forall pop exch writestring
} bind
/packedarraytype 1 index
/dicttype
{ 1 index (<<\n) writestring
{ 2 index 3 -1 roll pdfmark===only 1 index ( ) writestring
1 index exch pdfmark===only dup (\n) writestring
}
forall (>>) writestring
} bind
.dicttomark readonly def
/pdfmark===only { % <file> <obj> pdfmark===only -
.pdf===dict 1 index type .knownget { exec } { write===only } ifelse
} bind def
/.pdfcvbuf 10 string def % enough for most arguments
userdict /.pdfcvstring () put
/.pdfcvs { % <obj> .pdfcvs <string>
currentglobal exch false .setglobal
/.pdfcvstring () store
% We can't handle long values yet.
{ pop dup length 0 eq { pop } {
/.pdfcvstring .pdfcvstring 3 -1 roll concatstrings store
} ifelse //.pdfcvbuf
} /NullEncode filter dup 3 -1 roll pdfmark===only
closefile
.setglobal .pdfcvstring
} bind def
/.pdfputparams { % -mark- <key1> <value1> ... .pdfputparams <result...>
currentdevice null false counttomark 1 add 3 roll
% Don't allow the page device to get cleared....
{.putdeviceparams} .currentpagedevice pop {.setpagedevice} 3 .execn
} bind def
% Convert relevant operands to strings in an array.
/.pdfcvsloop { % -mark- values ... markname start step .pdfcvsloop
% [values ... ctm markname]
matrix currentmatrix .pdfcvs 4 1 roll
counttomark 1 add 2 roll ] 3 1 roll
% Stack: values start step
2 index length 3 sub { 2 copy 2 copy get .pdfcvs put pop } for
} bind def
/.pdfcvsall { % -mark- values ... markname .pdfcvsall <<same>>
0 1 .pdfcvsloop
} bind def
/.pdfcvseven { % -mark- key value ... markname .pdfcvseven <<same>>
1 2 .pdfcvsloop
} bind def
/.pdfcvsnone { % -mark- values ... markname .pdfcvsnone <<same>>
100000 1 .pdfcvsloop
} bind def
/.pdfcvsfirst { % -mark- first values ... markname .pdfcvsfirst<<same>>
.pdfcvsnone
dup 0 2 copy get .pdfcvs put
} bind def
% The procedures in the following dictionary are called with the entire
% pdfmark operand list (including the pdfmark name) on the stack;
% they may modify this ad lib. They must call .pdfcvsxxx.
/.pdfmarkparams mark
% Unpack a dictionary for PUT, and don't convert stream data.
/PUT {
counttomark 3 eq {
1 index type /dicttype eq {
pop { } forall /.PUTDICT .pdfcvsall
} {
pop dup type /filetype eq {
% Read the file into a sequence of strings.
% This isn't great, but it's simple.
{
dup 1000 string readstring not { exch exit } if
exch
} loop closefile
} if
/.PUTSTREAM .pdfcvsfirst
} ifelse
} {
.pdfcvsall
} ifelse
} bind
% Unpack the array for PUTINTERVAL.
/PUTINTERVAL {
pop aload pop /.PUTINTERVAL .pdfcvsall
} bind
.dicttomark readonly def
/.pdfparamerror { % ? ? ? -mark- ... <errname> <opname> .pdfparamerror -
counttomark 4 add 2 roll cleartomark pop pop pop
.systemvar exch signalerror
} bind def
/pdfmark { % -mark- <key> <value> ... <markname> pdfmark -
counttomark 1 add copy
//.pdfmarkparams 1 index .knownget { exec } { .pdfcvsall } ifelse
mark /pdfmark 3 -1 roll .pdfputparams
dup type /booleantype ne {
/pdfmark .pdfparamerror
} if cleartomark
} odef
userdict /pdfmark .undef
currentdict /.pdfmarkparams .undef
% Define setdistillerparams / currentdistillerparams.
% Distiller parameters are currently treated as device parameters.
/.distillerparamkeys mark
% General parameters -- all distillers
/ASCII85EncodePages { }
/AutoRotatePages { }
/Binding { }
/CompressPages { }
/DefaultRenderingIntent { }
/DetectBlends { }
/DoThumbnails { }
/ImageMemory { }
/LockDistillerParams { }
/LZWEncodePages { }
/OPM { }
/PreserveHalftoneInfo { }
/PreserveOPIComments { }
/PreserveOverprintSettings { }
/TransferFunctionInfo { }
/UCRandBGInfo { }
/UseFlateCompression { }
% General parameters -- PDF writer
% StartPage and EndPage are renamed because EndPage
% clashes with a page device parameter.
/CoreDistVersion { }
/CompatibilityLevel { }
% ****** NOTE: StartPage and EndPage are disabled because
% ****** EndPage clashes with a page device parameter.
% /EndPage { exch pop /PDFEndPage exch }
/PDFEndPage { pop pop }
% /StartPage { exch pop /PDFStartPage exch }
/PDFStartPage { pop pop }
/Optimize { }
/ParseDSCCommentsForDocInfo { }
/ParseDSCComments { }
/EmitDSCWarnings { }
/CreateJobTicket { }
/PreserveEPSInfo { }
/AutoPositionEPSFiles { }
/PreserveCopyPage { }
/UsePrologue { }
% Color sampled image parameters
/ColorACSImageDict { }
/AntiAliasColorImages { }
/AutoFilterColorImages { }
/ColorImageDepth { }
/ColorImageDict { }
/DownsampleColorImages { }
/ColorImageDownsampleThreshold { }
/ColorImageDownsampleType { }
/EncodeColorImages { }
/ColorImageFilter { }
/ColorImageResolution { }
% Color processing parameters
/CalCMYKProfile { }
/CalGrayProfile { }
/CalRGBProfile { }
/sRGBProfile { }
/ColorConversionStrategy { }
/ConvertCMYKImagesToRGB { }
/ConvertImagesToIndexed { }
% Grayscale sampled image parameters
/GrayACSImageDict { }
/AntiAliasGrayImages { }
/AutoFilterGrayImages { }
/GrayImageDepth { }
/GrayImageDict { }
/DownsampleGrayImages { }
/GrayImageDownsampleThreshold { }
/GrayImageDownsampleType { }
/EncodeGrayImages { }
/GrayImageFilter { }
/GrayImageResolution { }
% Monochrome sampled image parameters
/AntiAliasMonoImages { }
/MonoImageDepth { }
/MonoImageDict { }
/DownsampleMonoImages { }
/MonoImageDownsampleThreshold { }
/MonoImageDownsampleType { }
/EncodeMonoImages { }
/MonoImageFilter { }
/MonoImageResolution { }
% Font embedding parameters
/AlwaysEmbed
{ dup length 0 gt
{ dup 0 get false eq
{ dup length 1 sub 1 exch getinterval exch pop /~AlwaysEmbed exch
} if
} if
}
/NeverEmbed
{ dup length 0 gt
{ dup 0 get false eq
{ dup length 1 sub 1 exch getinterval exch pop /~NeverEmbed exch
} if
} if
}
/CannotEmbedFontPolicy { }
/EmbedAllFonts { }
/MaxSubsetPct { }
/SubsetFonts { }
.dicttomark readonly def
/.distillerdevice
{ currentdevice .devicename /pdfwrite eq
{ currentdevice }
{ /pdfwrite finddevice }
ifelse
} bind def
/setdistillerparams { % <dict> setdistillerparams -
.distillerdevice null false mark 4 index {
//.distillerparamkeys 2 index .knownget { exec } { pop pop } ifelse
} forall .putdeviceparams
dup type /booleantype ne {
/setdistillerparams .pdfparamerror
} {
pop pop pop
} ifelse
} odef
/currentdistillerparams { % - currentdistillerparams <dict>
.distillerdevice //.distillerparamkeys .getdeviceparams .dicttomark
% Patch StartPage and EndPage
% ****** NOTE: StartPage and EndPage are disabled because
% ****** EndPage clashes with a page device parameter.
% begin /StartPage PDFStartPage /EndPage PDFEndPage
% currentdict dup /PDFStartPage undef /PDFEndPage undef
% def def currentdict end
} odef
% Patch 'where' so that the distillerparams operators are only visible
% if the pdfwrite device is the current one, for the benefit of badly
% designed PostScript files that "know" they have to do something different
% if a distiller is processing them.
.wheredict /currentdistillerparams {
currentdevice .devicename /pdfwrite eq {
.where
} {
.where pop dup //systemdict eq { pop false } { true } ifelse
} ifelse
} bind put
.wheredict /setdistillerparams .wheredict /currentdistillerparams get put
% Set a predefined configuration if PDFSETTINGS is defined.
/PDFSETTINGS where { pop /PDFSETTINGS load } { /default } ifelse
.distillersettings exch get
% Don't override parameters defined on the command line.
dup length .distillercommon length add dict begin
.distillercommon 2 {
{
systemdict 2 index known { pop pop } { def } ifelse
} forall
} repeat
currentdict end setdistillerparams